Hello! This is my first question and I'm hoping for some help. I had a procedure on my cervix a few years ago, this is my first pregnancy.
From what I understand because of the procedure my doctor said at the outset that he was going to monitor my cervix for problems. Well fast forward and thanks to a couple of administrative errors this was never looked at.
Finally I did get it looked at at 23 weeks where they said it looked fine at 4cm.
My problem is this...they did the scan from my tummy and my midwife said they should have done it internally. The doctor said it looked fine and I was happy with this but now the midwife has frightened me a bit, could it be so different? Surely they are measuring the same thing? And I was assured it was in the normal range.
Anyone has any experience with this? I've never heard of it and I don't want to freak out, especially as hospital won't scan me again, but she's put the frights up me 


Thank you,
Cassie x